package com.zhuang.set;

import java.util.HashSet;

import com.zhuang.linkedlist.arr.ArrayList;

public class SetTest {

	public static void main(String[] args) {
		ArrayList<Object> list = new ArrayList<>();
		list.add("abc");
		list.add("abc");
		System.out.println(list.size());

		HashSet<Object> hashSet = new HashSet<>();
		hashSet.add("abc");
		hashSet.add("abc");
		System.out.println(hashSet);

	}

}
